remote thermometer or thermocouple help required

I am looking for a submersible remote thermometer for my main storage tank that will go to 90'C and transmit 200' to the main unit. Also looking for a thermocouple unit to measure my secondary burn chamber(remote also). Is there one unit that will do both? Does anyone know of something like this, any leads will be appreciated.

That's going to be tough. There's another recent thread that discusses using a webcam to 'look' at temperature readouts. I use a well made of 3/8" soft copper to get my temp sensors into my storage tank while keeping them dry.